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Published on: September 13, 2024
Photoluminescence and self-assembly of three different Eu complexes
Adrian Ebert1, Lukas Gerhard2, Julia Feye3
1Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Karlsruhe, Germany. adrian.ebert@kit.edu.
None:
In this study, we investigate the photoluminescence and the self-assembly of three distinct europium (Eu) complexes-[Eu(tta)3(bpy)] (tris(thenoyltrifluoroacetonate)europium(III)2,2'-bipyridine), [Eu(btfa)3(bpy)] (tris(4,4,4-trifluoro-1-phenyl-1,3-butanedione)europium(III)2,2'-bipyridine), and [Eu(tta)3(H2O)2] (tris(thenoyltrifluoroacetonate)europium(III)dihydrate)-on a Au(111) surface. Utilizing scanning tunneling microscopy (STM), we explore the molecular topography and the ordered structures formed by these complexes, providing insight into their surface interactions. The europium (Eu3+) ion, a member of the lanthanide series, is renowned for its unique photophysical properties, particularly its sharp emission bands and relatively long-lived luminescence, which make it a valuable component in light-emitting devices, bio-imaging, and sensing applications.
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